Barbaric Mountain King With no armor. NEED HELP

I'm trying to skin out a Mountain King with no armor. I'm just doing the head right now I can do the body. I got rid of the skulls and his horns (alpha mapping) and I edited the model to get rid of the spike at the back of his helmet. But no matter what I try I always get a "bald" spot which is all gray at the top of his head. See attached picture.

Sounds like a problem with the UV wrap. You might have to change it for it to do exactly what you want. Try Vertex Modifier.